New 1x6 In Old Glass For Stringer Replacement?

[mspring]

I was talking to a guy about replacing my stringers. He told me on his 26 footer he just cut the top off the stringers like if he was going to do the seacast deal. Removed old wood, roughed up the inside of old glass, cut new stringer, poured in resin to seat stringer in, painted walls of glass with resin, tapped the stringer down into the resin and old glass and then capped off the stringer with a strip of cloth on the top. The guy tells me this was done several years ago and no problems yet.

I cant wait to here what you guys will have to say about this method.

 

[tashasdaddy]

Re: New 1x6 In Old Glass For Stringer Replacement?

it's possible if the glass is in good shape, usually not tho.

 

[mspring]

Re: New 1x6 In Old Glass For Stringer Replacement?

Can I assume if I am able to cut the top off and dig the old wood out without the glass breaking and cracking, that the glass is o.k. ?

Also, could the transom be done the same?

 

[jcsercsa]

Re: New 1x6 In Old Glass For Stringer Replacement?

HI , My glass wasnt that good to even try that !! In spots I could break it with my fingers !! I did leave a little grove on the bottom to hold the stringers in !!! I didnt have to take my transom out , but i dont think you will be able to slide it out if it is even glassed in at all !!!! at least I would hope not !!!! sorry but I wouldnt want mine to just slide out !!!! John

 

[tashasdaddy]

Re: New 1x6 In Old Glass For Stringer Replacement?

transom read this, can also be used for stringers.

http://forums.iboats.com/showthread.php?t=206019

 

[mspring]

Re: New 1x6 In Old Glass For Stringer Replacement?

I am talking about cutting the top off the stringers, digging out the old wood and replacing it with another wood 1x6 not seacast.

That is also what I was asking about the transom. Why cant I cut off the transom cap, dig out the old wood, trace the outline of the outside transom skin on a piece of plywood for a template, make the transom and coat it it resin and hammer it down in between the two skins?

 

[mudmagnet63]

Re: New 1x6 In Old Glass For Stringer Replacement?

the only problem with doing it your way is that the chemical reaction with the old fiberglass has already occured it cannot be reactivated. a Mechanical bond is the only one left. the inside of the stringers would need to be roughed up to complete the bond.

 

[wca_tim]

Re: New 1x6 In Old Glass For Stringer Replacement?

If you were going to do it that way, wouldn't epoxy allow for a good bond with the old glas / resin? Also, if you were going to do it that way, wouldn't the seacast work best? It may be a little heavier, but it adds a lot of strength...

 

[mspring]

Re: New 1x6 In Old Glass For Stringer Replacement?

I would love to use seacast on the stringers and transom, but I am trying to save money.

 

[ondarvr]

Re: New 1x6 In Old Glass For Stringer Replacement?

There would be no real problem with just removing the rotten wood, replacing it and putting a cap back on. It would be nice to roughen the inside for a good bond, but it's not critical. The cap should be more than just a layer of cloth though, a couple of layers of mat and roving would be much better. Getting the wood out of the transom can be much more difficult unless it's completely rotten, but the chain saw method does seem to work.

 

[Nandy]

Re: New 1x6 In Old Glass For Stringer Replacement?

There would be no real problem with just removing the rotten wood, replacing it and putting a cap back on. It would be nice to roughen the inside for a good bond, but it's not critical. The cap should be more than just a layer of cloth though, a couple of layers of mat and roving would be much better. Getting the wood out of the transom can be much more difficult unless it's completely rotten, but the chain saw method does seem to work.

Ditto! make sure the height of the new stringer is correct.

 

[drewmitch44]

Re: New 1x6 In Old Glass For Stringer Replacement?

how manny layers of the mat and roving would ya need and what would be the order in which they go? Like would it go mat, roving, mat? Or roving mat roving? Just curious as im about to do this myself. My stringers are not too bad and pretty dry also. I want to replace them though cause they were not glassed in verry well.

 

[SgtMaj]

Re: New 1x6 In Old Glass For Stringer Replacement?

Seacast would probably be the best way to go here. Also, I don't think it's any heavier than wood, in fact it floats just fine.

Good quality marine wood will cost between $75-100 per, and by the time you factor in the resin and fiberglass needed, you might as well splurge on the seacast and get a 5-gallon kit for about $200. The ease of install and not ever worrying about having to do it again will more than pay the difference.

The people over at seacast are top notch by the way. They found a way to save me over $30 on my order when they didn't have to. Not a lot of companies out there will do that these days. So yeah, I would definately recommend going the seacast route.

 

[ondarvr]

Re: New 1x6 In Old Glass For Stringer Replacement?

Drew

Did you want to replace yours in this manner, or were you going to do a complete removal and replacement? It's always mat roving, mat roving.

Sea cast would work fine, but would cost far more than a 2X6 and would still need to be capped. Most anything will work to fill the space, foam, wood, cardboard, a F/G form, or nothing, just overlay it with the correct amount of glass and be done with it.

 

[mspring]

Re: New 1x6 In Old Glass For Stringer Replacement?

Are you guys saying it is the glass that is important not what it used as the stringer?

Also if I dig ourt the old stringer what is the best way to know if my old glass is still good and reusable?

 

[ondarvr]

Re: New 1x6 In Old Glass For Stringer Replacement?

If no wood is used, you need a little more glass.
Wood is cheap, strong and easy to work with, but is not required.

If it's solid and still bonded to the hull, then it should be fine.

 

[mspring]

Re: New 1x6 In Old Glass For Stringer Replacement?

Thanks for all the replies guys. I think Im going to look at my stringers again, maybe a drink a cold beer and meditate on it some more. The problem I will have is cutting the new 1x6 without the old one for a template. Also the stringers curve in at the bow which will make them difficult to seat into the pre-existing glass. Maybe if I use plywood and rip several cuts on the side I can bend it just like they do archs in a house.

How could I make a template that would show the curvature of the hull on the bottom of my stringers?

 

[mudmagnet63]

Re: New 1x6 In Old Glass For Stringer Replacement?

Cardboard

 

[Robj]

Re: New 1x6 In Old Glass For Stringer Replacement?

Run a tight string besides your stringer, at the height of the original stringer. Take measurements at 6 inch increments and cut your stringer to that dimension. I cut mine at an angle to account for the slope in the hull. Mine was about 20 degrees which increased close to the bow. If you are going to use the existing fibreglass shell, I would seal the new stringer with resin and then fill the bottom of the cavity with a resin putty and bed the new stringer in that. Make sure you prep the cavity as best you can, remove the rotten wood, rough it up if you can, and then clean it with acetone and you are good to go.

Good luck and have a great day,

Rob.